CN104497848B - 一种高强度双组分蓖麻油聚氨酯防水涂料 - Google Patents
一种高强度双组分蓖麻油聚氨酯防水涂料 Download PDFInfo
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Abstract
本发明涉及一种高强度双组分蓖麻油聚氨酯防水涂料，由组分A和组分B反应得到；其中组分A是天然植物油、异氰酸酯混合物在有机溶剂中反应得到；组分B是由调和油、固体颜料、固体填料、偶联剂以及稳定剂混合搅拌得到。本发明利用天然植物油与异氰酸酯混合物反应得到的预聚体再与色浆体系反应时不完全依赖潮气来完成固化反应，进而缩短了施工周期，利用本发明制备的高强度双组分蓖麻油聚氨酯防水涂料不仅提高了产品的储存稳定性、室外施工适应性，而且得到的防水膜具有力学性能优异、防水性能好、耐老化性能好、装饰效果好。该种防水涂料可以在高档建筑物、公路、桥梁、高速铁路、飞机场、大型场馆上面使用，甚至还可以应用于储油罐体表面等，有着较为广阔的应用范围，具有很好的经济和社会效益。
Description
技术领域
本发明涉及一种高强度双组分蓖麻油聚氨酯防水涂料。
背景技术
聚氨酯防水涂料是一种新型防水涂料，聚氨酯防水涂料是由异氰酸酯、聚醚等经加成聚合反应而成的含异氰酸酯基的预聚体，配以颜填料、催化剂、扩链剂、有机溶剂等工序加工制成的聚氨酯防水涂料。
现有的聚氨酯防水涂料有许多种，由于具有施工操作方便，适用领域广，防水效果好，防水有效期长等独特特点而被广泛应用，但随着社会的进步，建筑业的迅猛发展，人们生活水平和环保节能意识的提高，以及各种新型防水涂料的出现，现有的聚氨酯防水涂料的性能显得有点逊色，尤其是存放期较短，一旦存放期超过半年，产品易出现自固化或沉降等现象，且产品质量标准定位不高、性能较差、颜色单一，不适合室外施工环境，因此，研制一种性能优异，储存稳定性好，拉伸强度高，环保节能，价格合理，适合室内室外施工环境的聚氨酯防水涂料将会有很好的市场应用前景，也会给企业带来一定的社会和经济效益，对引导聚氨酯防水涂料的发展方向具有十分重要的意义。
发明内容
本发明的目的在于提供了一种高强度双组分蓖麻油聚氨酯防水涂料的制备方法。制备得到的高强度双组分蓖麻油聚氨酯防水涂料拉伸强度高、储存稳定性好、耐磨性能好、表观状态好、潮气固化时间短、装饰效果好、对环境污染小且适合室外环境施工。
实现本发明目的的技术方案是：一种高强度双组分蓖麻油聚氨酯防水涂料是由聚氨酯预聚体（以下简称组分A）和色浆体系（以下简称组分B）反应得到；其中组分A是由天然植物油和异氰酸酯混合物在有机溶剂中反应得到；组分B是由调和油、固体颜料、固体填料、偶联剂以及稳定剂混合搅拌得到。
而且，组分A和组分B的混合质量比为1:0.5～3；在组分A中，按照质量百分比计，天然植物油的用量为25%～55%，异氰酸酯混合物的用量为25%～50%，有机溶剂的用量为5%～25%；在组分B中，按照质量百分比，调和油的用量为15%～55%，固体颜料的用量为4%～30%，固体填料的用量为26%～60%，偶联剂的用量为0.3%～10%，稳定剂的用量为0.1%～8%。
而且，所述天然植物油为大豆油、桐油、蓖麻油、亚麻油、地沟油中的1～5种；所述异氰酸酯为甲苯二异氰酸酯、二苯基甲烷二异氰酸酯、1,6-己二异氰酸酯中的1～3种；所述有机溶剂为丙酮、乙酸乙酯、甲苯、二甲苯、甲乙酮、乙酸丁酯中的1～6种；所述调和油为蓖麻油、大豆油、亚麻油、桐油、地沟油中的1～5种；所述固体填料为滑石粉、轻质碳酸钙、高岭土、重晶石粉、青石膏粉中的1～5种；所述固体颜料为酞青绿、酞青蓝、群青、钛白粉、耐晒黄、永固黄、耐晒红、氧化铁红中的1～8种；所述偶联剂为γ-（甲基丙烯酰氧）丙基三甲氧基硅烷、γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷、γ-氨丙基三乙氧基硅烷、乙烯基三乙氧硅烷、γ-巯丙基三甲氧基硅烷中的1～5种；稳定剂为四亚甲基β-（3，5-二叔丁基-4-羟基苯基）丙酸季戊四醇酯、2，6-二叔丁基对甲酚、2-（2-羟基-3，5-二丁叔基苯基）-5-氯代苯并三唑、4，4′-二叔辛基-二苯胺、碳化二亚胺中的1～5种。
本发明的一种高强度双组分蓖麻油聚氨酯防水涂料利用天然植物油与异氰酸酯混合物反应得到的预聚体再与色浆体系反应时不完全依赖潮气来完成固化反应，进而缩短了施工周期，利用本发明制备的高强度双组分蓖麻油聚氨酯防水涂料不仅提高了产品的储存稳定性、室外施工适应性，而且得到的防水膜具有力学性能优异、防水性能好、耐老化性能好、装饰效果好。该种防水涂料可以在高档建筑物、公路、桥梁、高速铁路、飞机场、大型场馆上面使用，甚至还可以应用于储油罐体表面等，有着较为广阔的应用范围，具有很好的经济和社会效益。
附图说明
图1为本发明高强度双组分蓖麻油聚氨酯防水涂料清漆固化后的热重和热流曲线图
其中曲线a为高强度双组分蓖麻油聚氨酯防水涂料清漆固化后的热重曲线，曲线b为高强度双组分蓖麻油聚氨酯防水涂料清漆固化后的热流曲线。
具体实施方式
下面结合附图和实施例对本发明作进一步说明。
附图1中a为高强度双组分蓖麻油聚氨酯防水涂料清漆固化后的热重曲线图，有三步失重；b为高强度双组分蓖麻油聚氨酯防水涂料清漆固化后的热流曲线图，有两个吸热峰。说明高强度双组分蓖麻油聚氨酯防水涂料清漆降解是分两步进行。这是因为在该涂膜中只存在着一种交联网络：预聚体中的剩余-NCO与色浆体系中蓖麻油中-OH形成聚氨酯网络。从而得到具有稳定网络结构的防水涂膜。
经试验，本发明所涉及的组分范围均能实现发明目的，以下通过实例作进一步详述：
实施例一：
一种高强度双组分蓖麻油聚氨酯防水涂料，具体配方为：按质量百分比计，组分A:蓖麻油52.2%，甲苯二异氰酸酯15.7%，二苯基甲烷二异氰酸酯17.3%，1,6-己二异氰酸酯5%，乙酸乙酯3.5%，二甲苯6.3%；组分B：蓖麻油38%，高岭土23.9%，钛白粉12%，滑石粉15%，酞青兰4%，酞青绿6%，γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷0.7%，2-（2-羟基-3，5-二丁叔基苯基）-5-氯代苯并三唑0.4%。将组分A和组分B按照质量比1:1.5混合搅拌均匀，静置30min，在室温下刮涂于干燥的聚四氟乙烯板上，30℃下恒温7天。聚四氟乙烯板上的涂膜表干时间是4.5h，硬度为2H；聚四氟乙烯板上的涂膜按照聚氨酯防水涂料国家标准在XLD-3型电子拉伸试验机上测得其拉伸强度为13.34Mpa,断裂伸长率为231.64%；LTD-A型电动不透水测定仪测定其不透水性，0.4Mpa30min不透水。
实施例二：
一种高强度双组分蓖麻油聚氨酯防水涂料，具体配方为：按质量百分比计，组分A:蓖麻油48.2%，甲苯二异氰酸酯21.4%，二苯基甲烷二异氰酸酯20.3%，乙酸乙酯2.5%，二甲苯4.3%，丙酮3.3%；组分B：蓖麻油42%，高岭土20.9%，钛白粉10%，滑石粉16%，群青5%，酞青绿5%，γ-（甲基丙烯酰氧）丙基三甲氧基硅烷0.6%，2-（2-羟基-3，5-二丁叔基苯基）-5-氯代苯并三唑0.3%，2，6-二叔丁基对甲酚0.2%。将组分A和组分B按照质量比1:0.8混合搅拌均匀，静置30min，在室温下刮涂于干燥的聚四氟乙烯板上，30℃下恒温7天。聚四氟乙烯板上的涂膜表干时间是5h，硬度为2H；聚四氟乙烯板上的涂膜按照聚氨酯防水涂料国家标准在XLD-3型电子拉伸试验机上测得其拉伸强度为14.95Mpa,断裂伸长率为194.7%；LTD-A型电动不透水测定仪测定其不透水性，0.4Mpa30min不透水。
实施例三：
一种高强度双组分蓖麻油聚氨酯防水涂料，具体配方为：按质量百分比计，组分A:蓖麻油51%，甲苯二异氰酸酯18.9%，二苯基甲烷二异氰酸酯19%，乙酸乙酯4.8%，二甲苯6.3%；组分B：蓖麻油39%，高岭土27%，钛白粉8%，滑石粉14%，酞青兰4.5%，氧化铁红6.4%，γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷0.6%，四亚甲基β-（3，5-二叔丁基-4-羟基苯基）丙酸季戊四醇酯0.5%。将组分A和组分B按照质量比1:2混合搅拌均匀，静置30min，在室温下刮涂于干燥的聚四氟乙烯板上，30℃下恒温7天。聚四氟乙烯板上的涂膜表干时间是4h，硬度为2H；聚四氟乙烯板上的涂膜按照聚氨酯防水涂料国家标准在XLD-3型电子拉伸试验机上测得其拉伸强度为11.63Mpa,断裂伸长率为261.4%；LTD-A型电动不透水测定仪测定其不透水性，0.4Mpa30min不透水。
实施例四：
一种高强度双组分蓖麻油聚氨酯防水涂料，具体配方为：按质量百分比计，组分A:蓖麻油50%，甲苯二异氰酸酯18%，二苯基甲烷二异氰酸酯22%，乙酸乙酯3.5%，二甲苯6.5%；组分B：蓖麻油40%，高岭土18%，钛白粉9%，滑石粉20%，酞青兰4%，永固黄3%，酞青绿5%，γ-氨丙基三乙氧基硅烷0.3%，γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷0.3%，四亚甲基β-（3，5-二叔丁基-4-羟基苯基）丙酸季戊四醇酯0.4%。将组分A和组分B按照质量比1:0.5混合搅拌均匀，静置30min，在室温下刮涂于干燥的聚四氟乙烯板上，30℃下恒温7天。聚四氟乙烯板上的涂膜表干时间是5.5h，硬度为2H；聚四氟乙烯板上的涂膜按照聚氨酯防水涂料国家标准在XLD-3型电子拉伸试验机上测得其拉伸强度为15.59Mpa,断裂伸长率为211.4%；LTD-A型电动不透水测定仪测定其不透水性，0.4Mpa30min不透水。
实施例五：
一种高强度双组分蓖麻油聚氨酯防水涂料，具体配方为：按质量百分比计，组分A:蓖麻油50%，甲苯二异氰酸酯25%，二苯基甲烷二异氰酸酯16%，乙酸乙酯3.5%，二甲苯5.5%；组分B：蓖麻油44.3%，高岭土24%，钛白粉8%，滑石粉12%，酞青兰4%，群青4%，酞青绿3%，γ-氨丙基三乙氧基硅烷0.3 %，四亚甲基β-（3，5-二叔丁基-4-羟基苯基）丙酸季戊四醇酯0.2%，碳化二亚胺0.2%。将组分A和组分B按照质量比1:2.5混合搅拌均匀，静置30min，在室温下刮涂于干燥的聚四氟乙烯板上，30℃下恒温7天。聚四氟乙烯板上的涂膜表干时间是5.5h，硬度为2H；聚四氟乙烯板上的涂膜按照聚氨酯防水涂料国家标准在XLD-3型电子拉伸试验机上测得其拉伸强度为9.65Mpa,断裂伸长率为254.24%；LTD-A型电动不透水测定仪测定其不透水性，0.4Mpa30min不透水。
Claims (1)
1.一种高强度双组分蓖麻油聚氨酯防水涂料，其特征在于：按重量百分比计，组分A:蓖麻油51%，甲苯二异氰酸酯18.9%，二苯基甲烷二异氰酸酯19%，乙酸乙酯4.8%，二甲苯6.3%；组分B：蓖麻油39%，高岭土27%，钛白粉8%，滑石粉14%，酞青兰4.5%，氧化铁红6.4%，γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷0.6%，四亚甲基β-（3，5-二叔丁基-4-羟基苯基）丙酸季戊四醇酯0.5%；组分A和组分B的重量比为1:2。
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